1 files changed, 2 insertions, 2 deletions

diff --git a/src/bitmaps/gray1.xbm b/src/bitmaps/gray1.xbm
index 186ea2233c6..19ee0e7b44a 100644
--- a/src/bitmaps/gray1.xbm
+++ b/src/bitmaps/gray1.xbm
@@ -1,4 +1,4 @@
 #define gray1_width 2
 #define gray1_height 2
-static unsigned char gray1_bits[] = {
-   0x01, 0x02};
+static char gray1_bits[] = {
+  '\x01','\x02'};